题目

 Elephants eat ________, but they can move ________ when necessary.      A. noisy; silent            B. noisily; silently          C. noisily; silence       D. noisy; silence 答案：B在下列的动物中，质量最接近2kg的是（ ）A．一只老母鸡B．一只老鼠C．一匹马D．一只麻雀